Great Barrier Reef

How many main types of reefs are there in general?

• two

• three

• four

• ten thousand

where is the Great Barrier reef located?

• Australia

• Oceania

• Japan

• South America

what is a reef?

• underwater cave

• coastal area

• ridge of sand or rock or coral

• cave on the coast

why does Unesco protect reefs?

• because they emit CO2

• because they protect the ecosystem there

• because they are home to many species of marine animals

• because they are toxic

What activities can you do in the reefs?

• scuba-diving

• helicopter flight

• fishing

• day tours

What marine creatures can you see in the reefs?

• sea turtles

• sea horses

• sponges

• sharks

are there artificial reefs?

• yes

• no